TOP PHOTOS: July 18, 2013

Kim Hochstetter puts her arm around Melissa Johnson Thursday, July 18, 2013, after they left an angel near the location where the body of a missing 2-year-old Wisconsin toddler was found Wednesday in the trunk of a car near his home, in Centuria, Wisc. The two had participated in the search for the missing boy on Wednesday. Two-year-old Isaiah Theis disappeared Tuesday night. (AP Photo/Star Tribune, Glenn Stubbe)

A portrait representing former South African President Nelson Mandela is displayed on the windows of a building as lights inside the building reflect in downtown Cape Town, South Africa, Thursday, July 18, 2013. South Africa celebrated Nelson Mandela's 95th birthday on Thursday, a milestone capped by news that the former president's health was improving after fears that he was close to death during ongoing hospital treatment. (AP Photo/Schalk van Zuydam)

Children stand next to a birthday cake to mark former South African President Nelson Mandela's 95th birthday outside his home in Johannesburg, Thursday, July 18, 2013. South Africa celebrated Nelson Mandela's 95th birthday with acts of charity on Thursday, a milestone capped by news that the former president's health was improving after fears that he was close to death during ongoing hospital treatment. (AP Photo/Jerome Delay)

In this image taken Wednesday July 17, 2013, Dutch cycling fans dance in a downpour in curve number 7, also known as the Dutch curve, in the climb towards Alpe-d'Huez pass, France. Dutch fans gathered days ahead of the eighteenth stage of the Tour de France cycling race over 172.5 kilometers (107.8 miles) with start in Gap and finish in Alpe-d'Huez, France, Thursday July 18, 2013. (AP Photo/Thibault Camus)

Stage winner Christophe Riblon of France, front, and second place Tejay van Garderen of the U.S., rear, speed down Sarenne pass during the eighteenth stage of the Tour de France cycling race over 172.5 kilometers (107.8 miles) with start in Gap and finish in Alpe-d'Huez, France, Thursday July 18, 2013. (AP Photo/Christophe Ena)

A Pakistani vendor selling silver rings and precious stones convinces a customer to buy a ring, after breaking their daily fast of the holy fasting month of Ramadan, outside a shrine in Islamabad, Pakistan, Thursday, July 18, 2013. Muslims throughout the world are marking the month of Ramadan, the holiest month in Islamic calendar. (AP Photo/Muhammed Muheisen)

A member of the Italy team is thrown up in the air during a synchronized swimming training session ahead of the FINA Swimming World Championships in Barcelona, Spain, Thursday, July 18, 2013. (AP Photo/Michael Sohn)

An Israeli soldier checks the barrel of a tank of the 53rd Armor Battalion during an exercise in the Israeli controlled Golan Heights near the border with Syria, early Thursday, July 18, 2013. (AP Photo/Ariel Schalit)

Marina Shilova, left, of Russia, and Tatlidede Hilal, right, of France, raise the hands to show their support while waiting for their dinner during a demonstration in reaction to the acquittal of neighborhood watch volunteer George Zimmerman on Wednesday, July 17, 2013, in Beverly Hills, Calif. Protests have been held nationwide since jurors acquitted Zimmerman Saturday for the shooting death of unarmed teenager Trayvon Martin. Many of the posters carried by the protesters in Houston had a picture of Martin in his hooded sweatshirt. (AP Photo/Jae C. Hong)